JPS59188266A - Remote listening device of video tape recorder - Google Patents

Abstract

PURPOSE:To allow the owner of a VTR living at a remote place to set the start time of the VTR by constitute a closed circuit by telephone calling and setting a timer by a sent-out remote control signal. CONSTITUTION:The 1st time constant circuit 15 is charged by the 1st call signal, the 3rd time constant circuit 17 and the 4th time constant circuit 18 are charged through inverters G-5 and G-9 by the output of the circuit 15, and a telephone set is placed in an on-hook state in said state, namely, after a calling subscriber hears a ring-back tone once. The 3rd time constant circuit 17 is discharged within 3-15 seconds from said point of time to hold a terminal (a) of an AND gate G-11 at a level H thorugh a buffer G-10. Further, a terminal (b) is also held at the level H and a terminal (c) is held at the level H eventually to set an FF-6. A terminal D of an FF-5 goes up to the level H and the FF-5 is set by three call signals to turn on an analog switch 6, sending a tone of push-button dialing from the owner to a tone decoder 7.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for controlling a video tape recorder from a remote location, mainly by telephone line, which has recently become popular.

Recently, the spread of VTR has been remarkable, but this VT
The operation of the R is designed to be similar to that of a manual tape recorder, and it requires considerable skill to use the timer to operate the desired channel at the desired time. Also, unlike a normal tape recorder, the VTH has a heater that is always on to prevent condensation, and by turning it on, it can be used at any time.
If you forget to do this and turn off all power, especially in the morning of a very cold day, there will be no voltage even if you suddenly turn on the switch due to condensation.
Since you may be unable to operate the TR and miss out on opportunities, it is necessary to keep the heater on to prevent condensation at all times. For this reason, a dew condensation lamp is displayed on the outside, and it is necessary to keep this lamp on at all times so that it does not come on. Also, the timer and the power-on section share a switch for setting the timer, and if this timer is set, the recording switch must be pressed or else the tape will not start even when the timer time comes. At this time, it is also necessary to set the channel in advance. It is also possible to set this to a specified time using a timer, but this operation is
Depending on the type of l'H, it can be quite difficult for amateurs.

In view of the above-mentioned circumstances, the present application is designed to allow the owner of a VTR in a remote location to easily set it up by remote control when he or she suddenly wants to set it up, or when he or she wants to send cents several hours from now. The aim is to provide a means of

The structure and operation of one embodiment of the present invention will be explained below.

In Fig. 1, Ll and L2 are telephone lines, LT is a line transformer, 1 is a ringing circuit for detecting a calling signal, FF-1 is set by the output of the ringing circuit, and after a predetermined time by a timer 3. For example, the flip-flop Y-1, which is reset after 30 seconds, is a relay driven by the output of the slip-flop, and has a closing contact y1-1. Further, 4 is a remote control receiving circuit for detecting a specific remote control signal sent from a remote location, 6 is an analog switch controlled by the output of the FF-2, and 7 is a bushing sent from the owner of the remote location. This is a tone decoder for decoding the 7-on tone, IN is the input terminal, OUT is the 4-bit output terminal,
L is a latch output that outputs an H level when the push-7 on tone is set. 8 is a differential circuit configured to generate one pulse when the tone of the button 7 is turned off, and IC-1 is, for example, an M
It is a 4-TO-16 decoder with a latch such as the C14514, and when the terminal ST becomes H level with the code from the tone decoder 7 added to the input terminal IN, the above code is latched internally, and then the above code is latched internally. When a negative pulse from the differentiating circuit 8 is applied, the output terminals (0) (1)
-(90'4p) (US) While the negative pulse is applied to the corresponding one terminal, an H level is output. Also S D
0----8 D8 is a solenoid driven by the output of the above IC-1, and is configured to press the button of channel 1 (CHI) of the VTR as shown in the figure, for example, when SDI is driven. ing. 9 is a 3-second delay circuit that outputs an H level when the 2-de (0) is sent continuously for more than 3 seconds from the button 7 on in a remote location; 10
In this embodiment, R is a 30 minute timer that outputs an H level pulse every 30 minutes, and R is a terminal for resetting the timer operation to 0 seconds.

Reference numeral 11 is a first timer that turns on the VTR (described later) after a set time, although the timer setting means will be described later, and is composed of an up counter of IC-2 and a presettable down counter of IC-3. Irumata 12 is a second timer that sets the operating time of the VTR, which will be described later.
It consists of an IC-4 amplifier counter and an IC-5 presettable down counter. FF-3 is a clip-flop that is set when the 11th timer reaches the set time, Y-2 is a relay driven by the output of FF-3, and contacts 72-2 are used to drive the VTR. 1. 13 is a VTR, and SWI
is the power switch, and when it is in the OFF position, all power to the VTR is turned off via the startup circuit 13-2, and when it is in the ON position, the VT
Drive R, and at the TIMEH position, the built-in timer 13-
Contact 72-1 is connected to the TIMEH terminal when 1 is off.
The VTR is configured so that when an H level is applied through the VTR, the VTR is driven.

In FIG. 2, the remote control receiving circuit in FIG. 1 requires the owner to carry a specific remote control signal generator, but this is done by ringing a bell. Components in the figure that are the same as those in FIG. 1 are given the same numbers. 15 is a first time constant circuit that is charged by one ringing signal and discharged until the next ringing signal comes, and repeats this while the ringing signal is coming; 16 is the ringing signal 3;
The second time constant circuit 17 is charged with one ringing signal and discharges three seconds after the ringing signal stops ringing. The third time constant circuit 18 is charged with one ringing signal and discharges three seconds after the ringing signal stops ringing. This is a fourth time constant circuit that discharges 15 seconds after the signal stops ringing. Further, FF-5 and FF-6 are D-type flip-flops.

This device is composed of the above-mentioned parts and performs the functions described below. In FIG. 1, when a ringing signal is input to the telephone lines Ll and L2, the output of the ringing circuit 1 sets the flip-flop FF-1 to maintain the load relay y-i in the operating state, and contacts yi of the relay. -t, a loop is formed and a conversation is established. At the same time, the answering machine 2 is activated by the output of FF'-1. If the caller is an unspecified person, the message will be voiced into the answering machine 2, but if the caller is the owner and the channel and time of the VTR 13 are to be set, the following operations are required. I do. That is, after the answering machine 2 switches to the recording state, it first sends out a specific remote control signal.

This remote control signal is detected by the remote control receiving circuit 4 via the line transformer LT, and its output selects the flip-flop FF-2, so that the analog switch 6 is turned on. In this state, if the owner wants to set channel 4 of the VTR 130, for example, he presses button 4 on a touch-tone phone (not shown) at hand. The tone generated at this time is decoded by the tone decoder 7 via the line transformer LT, the amplifier circuit 5, and the analog switch 6, and is decoded by the tone decoder 7.
A code is output from T as a 4-bit binary number, and when this code stabilizes from chattering when the touch-tone button is pressed, the terminal becomes H level, and I
The above code applied to the input terminal IN of C-1 is connected to the terminal S
3. is latched internally through the
When the suppression of the button 7/ is released and the terminal of the tone decoder 7 returns from the H level to the L level, a negative pulse is generated from the differentiating circuit 8 for, for example, 0.1 seconds, and the terminal of the IC-1 is In the above example, terminal (4) becomes H level and solenoid S'D4 is driven during that time, and the 4th channel button of VTR 13 is pressed to select 4th channel. do.

Next, we will describe the operation for starting recording after one hour and restoring after two hours of recording when the four channels are installed. For this reason, the owner is
When you press and release the area button (not shown), the output terminal (su) of the decoder IC-1 becomes H level for 0.1 seconds as described above, and with this output, the signal is transmitted through the terminal a%C of the game (or game) G-3. Set the flip-flop FF-4, and connect the terminal Q1 of FF-4 to the terminal bsc- of the OR gate G-4
Minute timer 10, first timer 11 and second timer 12
The reset state of each counter and flip-flop FF-3 is released. Furthermore, since the output of the output terminal C# of the above IC-1 is applied to the clock terminal CK of the up counter IC-2, the count number of IC-2 becomes 1, and when the owner presses and releases the "Clean" button again, the above IC- 2 becomes the count number 2. This count number is introduced into the presettable down counter IC-3 as shown. Next, the owner said, ``If you press and release the rice button four times, as is clear from the above, the up counter IC of the second timer 12 will be activated.''
The count number of 4 becomes 4, and this value is preset in the presettable down counter IC-5.

As mentioned above, when the owner hangs up the phone after setting the channel and timer, the device side sets the 7 lip-flop FF-1 after a predetermined time by the timer 3, restores the relay Y-1, and opens the loop. On the other hand, in the first timer 11 and second timer 12 described above, 30
The minute timer 10 generates a pulse every 30 minutes, and this first pulse changes the count number of the down counter IC-3 from the preset value of 2 to 1, and the second pulse after 1 hour has elapsed causes the IC-3 to count down. The count number of 3 becomes 0, and at this time, the terminal ILL OIr of IC-3 becomes H level, and this output sets the 7-lip front panel FF-3 to keep the load relay Y-2 in the operating state, and its contact y
2-1, recording of four channels of the VTR 13 is started. Further, by setting FF-3, the terminal of the AND gate becomes H level, and the next pulse of the 30-minute timer 10 is introduced to the clock terminal CK of the down counter IC-5 via the G-2. Therefore, in the above example, 3
0 minute timer 107: Due to the four pulses of J. et al., that is, after 2 hours have elapsed, the count number of IC-5 becomes 0 and the terminal "0" goes to H level and flip-flop FF-4
By resetting to , each counter of IC-2 to IC-5 and flip-flop FF-3t- are reset, so relay Y-2 is also restored and contact y2-] opens, so V
Stop recording of TR13. Also, unlike the above example, in order to immediately start the recording operation of the VTR 13 and stop it after a predetermined time, it is sufficient to press and release the "rice" button a predetermined number of times. That is, at this time, since the count number of the down counter IC-3 of the first timer 11 is 0, the flip-flop FF-3 is immediately sent to the relay Y-2.
This is because it is sounded.

Next, FIG. 2 will be explained. In contrast to Figure 1, which sends out a specific remote control signal before setting the channel and timer, this allows the setting of the channel and timer to be made later depending on how the bell rings. That is, when this device is called, the first time constant circuit 15 is charged by the first call signal, and the output of the first time constant circuit 15 charges the inverters G-5 and G-5.
-9 through the third time constant circuit 17 and the fourth time constant circuit 18
is charged and hangs up in this state, ie, after the caller hears one ringback tone. From this point onwards 3~
Since the charge of the third time constant 17 is discharged within 15 seconds, the terminals a of the AND gates G-11 are at H level via the buffer G-10. Furthermore, once the fourth time constant circuit 18 is charged, it holds the charge for 15 seconds, so the inverter G-
12 to the terminal beI (level) of AND gate G-11. At this point, terminal C of G-11 becomes H level,
Here, the FF is connected via the terminal C of the flip-flop FF-6.
-6 is inverted to the set state (because the terminal is already at H level).

Therefore, the terminal of the 7-lip flop FF-5 is held at H level. When this device is called again in this state, the second time constant circuit 16 is charged with three call signals, and the inverter G-7 is charged.
Since the terminal C of flip-flop FF-5 is set to level ■ through It is possible to send a tone from the owner to the tone decoder 7.

As described above, the present application is designed to help owners of conventionally remote VTRs forget to set the VTR's timer, or when they are out and about looking at a newspaper or the like and suddenly want to record it. It is now possible to call up and set it by operating it with a remote control in the same way as calling up a remote control, and although there are several examples of ways to do this, it has recently become popular. The applicant claims a patent within the above scope because it is possible to further enhance the utility of VTRs, which are becoming increasingly popular.

[Brief explanation of the drawing]

11i1 is a circuit diagram of the main part of the present invention, and FIG. 2 is a circuit example of another embodiment. 4... Remote control receiving circuit, 6... Analog switch, 11... First timer, 12... Second timer, 1
5...First time constant circuit, 16...Second time constant circuit, 1
7.--Third time constant number of times, 18.. Fourth time constant circuit,
Ll, L2...Telephone line, LT...Line transformer Applicant: Hashimoto Corporation Representative: Kazue Hashimoto Procedural amendments (toward) July 2, 1980 Director General of the Patent Office 2. Title of the invention: Video tape recorder Relationship between remote listening wl device 3 and the amended person case Patent applicant address 2-28-2 Komazawa, Setagaya-ku, Tokyo (telephone) 421
-2266 4. Date of amendment order: July 26, 1982 (shipment date) 5. Subject of amendment Drawings

Claims (5)

[Claims] (1) A Pushinger coil that electromagnetically presses the VTR channel switching button from the outside, a control circuit that controls the Pushinger coils in numerical order corresponding to the channel number, and a telephone call from the owner. A circuit that receives a remote control signal sent from the owner after the circuit is configured; a first timer means for setting a time until the VTR that is to be started is started by the remote control signal sent from the owner; a second timer for setting a recovery time after the start by the first timer using a remote control signal sent from the owner's side; and a means for determining the corresponding channel of the channel changeover switch to be pressed by the remote control signal sent from the owner's side. A remote listening device for a video tape recorder, comprising: a channel signal receiving circuit that transmits a remote control signal from the owner side; and means for resetting the entire device when the sound of the remote control signal is incorrect by a remote control signal sent from the owner side. (2) The remote listening device for a video tape recorder as set forth in (1) above, characterized in that the remote control signal can be sent by a button on a direct button. (3) Remote listening of the video tape recorder as described in (1) above, characterized in that the above remote control signal can be made by sending a specific book≠sumo control signal or by sending a Puno Seaho button after making a specific call. Device. (4) Remote listening of the video tape recorder as set forth in (1) above, characterized in that the remote control operation is coupled to the circuit of an answering machine so that when the owner calls, the answering machine can be used while the owner is answering the call. Device. (5) The remote listening device for a video tape recorder as set forth in (1) above, wherein the remote control operation procedure can be recorded on the receiving tape of the answering machine in the same manner as messages from general customers.